M.A. Whittington, N. J. Kopell and R.D. Traub, What are the local circuit
design features concerned with coordinating rhythms? Ms prepared for Strungman
Forum: Dynamic coordination in the brain: From neurons to mind. 2009.

N. Kopell, Chains of oscillators and the effects of multiple coupling.
Appendix to studies of the lamprey central pattern generator for locomotion: A
close relationship between modeling and experimentation, by A.H. Cohen, in
Dynamic patterns in complex systems, S. Kelso, ed., World Scientific
Publishers, 1988;156-161.

N. Kopell, Pattern formation in chemistry and biology: A mini-survey of
mechanisms. In Psychology and biology of language and thought: Essays in honor
of Eric Lenneberg, G. Miller, ed., Academic Press, New York, 1978;65-85.